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641583093 = 31697126023
BaseRepresentation
bin100110001111011…
…100011111110101
31122201020210112210
4212033130133311
52303221124333
6143355204033
721620236434
oct4617343765
91581223483
10641583093
112aa17a968
1215aa46619
13a2bc7b88
14612cd11b
153b4d3a63
hex263dc7f5

641583093 has 8 divisors (see below), whose sum is σ = 855955008. Its totient is φ = 427466624.

The previous prime is 641583079. The next prime is 641583101. The reversal of 641583093 is 390385146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 641583093 - 210 = 641582069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641585093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57921 + ... + 68102.

It is an arithmetic number, because the mean of its divisors is an integer number (106994376).

Almost surely, 2641583093 is an apocalyptic number.

It is an amenable number.

641583093 is a deficient number, since it is larger than the sum of its proper divisors (214371915).

641583093 is a wasteful number, since it uses less digits than its factorization.

641583093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127723.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 641583093 is about 25329.4905791648. The cubic root of 641583093 is about 862.4838472925.

The spelling of 641583093 in words is "six hundred forty-one million, five hundred eighty-three thousand, ninety-three".

Divisors: 1 3 1697 5091 126023 378069 213861031 641583093